Passage Five
Scientists claim that air pollution causes a decline in the world’s average air temperature. In order to prove that theory, ecologists have turned to historical data in relation to especially huge volcanic eruptions. They suspect that volcanoes effect weather changes that are similar to air pollution.
One source of information is the effect of the eruption of Tambora, a volcano in Sumbawa, the Dutch East Indies (the former name of the Republic of Indonesia), in April 1815. The largest recorded volcanic emption, Tambora threw 150 million tom of fine ash into the stratosphere. The ash from a volcano spreads worldwide in a few days and remains in the air for years. Its effect is to turn incoming solar radiation into space and thus cool the earth. For example, records of weather in England show that between April and November 1815, the average temperature had fallen 4.5°F. During the next twenty-four months, England suffered one of the co
A. Weakened
B. Improved
C. Depreciated
D. Decline
Passage Five
Scientists claim that air pollution causes a decline in the world’s average air temperature. In order to prove that theory, ecologists have turned to historical data in relation to especially huge volcanic eruptions. They suspect that volcanoes effect weather changes that are similar to air pollution.
One source of information is the effect of the eruption of Tambora, a volcano in Sumbawa, the Dutch East Indies (the former name of the Republic of Indonesia), in April 1815. The largest recorded volcanic emption, Tambora threw 150 million tom of fine ash into the stratosphere. The ash from a volcano spreads worldwide in a few days and remains in the air for years. Its effect is to turn incoming solar radiation into space and thus cool the earth. For example, records of weather in England show that between April and November 1815, the average temperature had fallen 4.5°F. During the next twenty-four months, England suffered one of the co
A. England's proximity to the North Sea
B. Volcanic ash in the atmosphere
C. Floorings in the area
D. Pollution caused by the International Revolution
Passage Five
Language is a way to communicate with each other. We started to learn language when we were born. However, people are used to speaking their native language, so immigrants are having many problems between the first generation and the second generation because they don’t have the same native language. Also, the second generation is losing their identity. Especially in America, there are many immigrants that came from different countries to succeed in the States. Because they suffer in lots of areas such as getting a job and trying to speak English, they want their children to speak English, not only at school, but also at home in order to be more successful. Because of this situation, their children are losing their ethnic identity and, even more, they are ignoring their parents whose English is not very good.
For example, my aunt, who has been living in Chicago for fifteen years, has three children and they were all born in the States. Th
A. Second generation immigrants are usually eager to learn their parents' native language.
B. It is often hard for first and second generation family members to communicate with each other.
C. Because second generation immigrant children often speak only English, they may lose their ethnic identity.
D. Sometimes second generation immigrant children ignore their parents because of language differences.
Passage Five
Although no one is certain why migration occurs, there are several theories. One theory is based upon the premise that prehistoric birds of the northen Hemisphere were forced south during the Ice Age, when glaciers covered large parts of Europe, Asia, and North America. As the glaciers melted, the birds came back to their homelands, spent the summer, and then went south again as the ice advanced in winter. In time, the migration became a habit, and now, although the glaciers have disappeared, the habit continues.
Another theory proposes that the ancestral home of all modern birds was the tropics. When the region became overpopulated, many species were crowded north. During the summer, there was plenty of food, but during the winter, scarcity forced them to return to the tropics.
A more recent theory, known as photoperiodism, suggests a relationship between increasing daylight and the stimulation of certain glands in the birds’ bod
A. To test the relationship between daylight and a disease of the glands common to birds.
B. To test the relationship between daylight and migration.
C. To test the relationship between migration and temperature.
D. To test the relationship between daylight and changes in the season.
Passage Five
Everything has a name. All people, places, and things have names. For example, Jenny is the name of a student from England. England is the name of her country. Cities and towns have names, too. Schools and office buildings also have names. All things have names. For example, tomato, potato and bean are names of vegetables. Apple, orange and banana are names of fruits. Names are important.
We use names every day. When we meet a new person, we usually ask, "What’ s your name" It is important to learn a person’ s name. Most people have two names. Some people have more names. Names are different all over the world. In Jenny’ s class, Jenny must learn the names of students from all over the world. This is very difficult because the names are very different.
In the United States, most people have a first name, a middle name, and a last name. Parents choose the first and middle names for their baby. There are names
A. the father' s
B. the grandfather' s
C. the mother' s
D. the grandmother' s
我来回答:
